Window-locking device



J. CHOIVIOS.

WINDOW LOCKING DEVICE.

APPLICATION FILED 1350.19, I9I9.

1 352, 1 1 4 Patented Sept. 7, 1920e WHW' II N V EN TOR. John Cho/7705 ATTORNEY.

- UNITED STATES JOHN CHOMOS, OF TOLEDO, OHIO.

WINDOW-LOCKING DEVICE.

4Specification of Letters Patent.

Patented Sept. 7, 1920.

Application filed December 19, 1919. Serial No. 346,103.

To all flu/tomy may concern.'

Be it known that I, JOHN Ci-roMos, citizen of Hungary, and resident of Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful lmprovements in lVindow-.iocking Devices, of

Vwhich the following is a specification.

This invention relates to window locks and especially to that type which holds the window sash in any position.

The object of this invention is the provision of simple and efficient means whereby the window sash can be quickly raised or lowered and locked in any desired position, locking up.

A further object of this invention is the provision of window holding means which eliminates the necessity for using sash weights for holding the window in position.

TPor the accomplishment of the aforesaid objects l employ the devices shown in their preferred form in the accompanying drawings, in which:

Figure 1 is a front elevation of a window to which my improved device has been -attached.

Fig. 2 is a vertical section on line 2 2 of Fig. 1.

Fig. 3 is a horizontal section on line 8--3 of Fig. 1.

Fig. 4 is a vertical section on line 4 4 of Fig. 2, some of the parts being exaggerated for clearness.

ln the practical embodiment of my invention, the vertical racks 1 and 2 are inserted in the simple window frame 8 adjacent to sashes 5 and 2O respectively so that the teeth 4 of said racks face toward the center line of the window. rllhe lower sash 5 has pinions 6 at the corners thereof adapted to engage racks 1 on either side, said pinions being mounted on studs 7 Members 8 having slots 9 therein are shaped at the ends 10 so as to fit between the teeth 11 of said pinions.

Guide rods 12 in said slots 9 act to force members 8 to move horizontally. The pin 13 in the end of member 8 is arranged for engagement with cam slot 14 of disk plate 15 which is mounted on stud 16 and which can be rocked by means of handle 17. The lower rail 18 of sash 5 has groove 19 cut therein for allowing pinions 11, members 8 and disk 15 to be set in said rail.

The means shown for holding sash 20 in the desired position consist of thumb lever 21, having the bendr22 thereon which passes through opening 23 in the uprightparts of said sash, said lever 21 being pivotally mounted on bracket 24 at joint 25. The end of bend 22 is shaped to lit between the teeth of rack 2, said end being normally forced into contact with said rack by means of spring 26.

To raise sash 5, handle 17 is turned toward the right from the position shown in F ig. 4, whereby pins 13 move in cam slots 14 nearer the center of stud 16, causing iembers 8 to move toward each other out of engagement with teeth 11 of pinions 6. The sash 5 is now free to be raised. The raising of said sash causes pinion 6 to rotate because of its engagement with rack 1, and, there being two pinions 6 on each side, there is no lost motion laterally. Then the desired position of said sash is reached, handle 17 is turned back to the left forcing members 8 into rengagement with pinions 6 whereby said pinions are prevented from rotating and the sash 5 is held firmly in place.

To move sash 20, the lower parts of levers 25 are pressed in toward the sash from releasing the engagement of bends 22 with racks 2 and allowing said sash 2O to be dropped into any desired position at which point levers 21 are released allowing bends 22 to again engage racks 2 whereby sash 2Q is locked in position.

It is obvious that the device shown for locking sash 2O may be replaced by a device similar to that shown for holding sash 5 in position. It will also be seen that a lock connecting sash 20 to sash 5 for preventing the opening of the window from the outside is unnecessary because each sash is locked in place separately. No sash weights being required to hold the window in position, a simple form of window frame 3 may be used, and weights, pulleys and cords eliminated.

`What I claim is:

In combination with a window sash having an upwardly extending groove cut in the lower rail thereof, a stationary rack, a revoluble pinion in said groove revolubly mounted in the corner of said lower rail for engaging said rack, a slidable member haying a longitudinal slot therein positioned 1n /sziid rail groove, stationary pins in said rail passing through the slot in seid member for allowing only longitudinal movement of said member, a tooth on the end of seid member for engaging one of the spaces between the teeth of seid pinion, a pin on the other end of said member, a slotted eem disk, said last mentioned pin being arranged to engage one of the Cam slots in said disk, a stud mounted 10 in Said rail on which said disk is mounted,

and a handle on said disk projecting upwardly through Said rail Jfor rotating said disk to cause seid member to engage and to be disengaged from said pinion whereby rotation of said pinion is prevented.

Sivned'at Toledo in the county of Lucas and tate of Ohio this 15th day of December A. D. 1919.

i JOHN oHoMos. 

